package com.lanou3g.code0510;

import org.apache.commons.io.IOUtils;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;

/**
 * Created by dllo on 18/5/10.
 */
@WebServlet(name = "DownloadServlet", urlPatterns = "/down")
public class DownloadServlet extends HttpServlet {

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //设置响应的编码格式为utf8
        response.setCharacterEncoding("utf8");
        //设置下载响应头
        response.setHeader("Content-Disposition", "attachment;filename=aa.mp3");
        InputStream is = getServletContext().getResourceAsStream("files/aa.mp3");
        //向浏览器写流
        response.getOutputStream().write(IOUtils.toByteArray(is));
    }
}
